Spring structure and method of assembling same



April21, 1925.' 1,534,268

w; H. KINNEY SPRING STRUCTURE AND METHOD OF ASSEMBLIN G SAME Filed April 19, 1920 I a 720W ywwfiw same.-. a a i a ffTherinyention censists in-' the features ef' improvements herein s t forth illustrated-11nitspreferred embodiment in theaccompanyedc1ai'rns.' j

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with one. another a 'by horizontally disposed spiral? spacingfsprings. The" inventions seeks to provide. improved Ineansfor coupling the upholster ngandsplacing spr ngs, which wilh securely connect**same"and to provide an improved method of assembling" WlllClll will facilitate and cheapen-the nanufactnre of j inggdra wings and pointed out i11 theappenda Inthe drawing Fig.1; is partial plan View" of a; spring structure embodying my invention; Fig: 2;; a} detail sidefiview of the V connectionfonan enlargedljscalfe wlth parts thereof; show-11in: sect on; and? Fig.3 IS an:

end View: of tlie= parts shown in Fig-.91 i

cushioning fsprings at proper distances apart a hymeansfof' srnall spiral. orfcoiDsprings whicnha-ve their ends-connected Wllill the" a n main springs at the propen point toinainta-in the desired distance jhetweentthelatter. It

has been customary to make the jconnection- [of the main spring witli'the end of the i spacing spring by means ofa connector loop whichernbraces a coil ofthe main spring I and hasarms inserted in the end of the "spacer spring and formed with outturned hooks atthe inner ends ofthe arms to engage acoilof the spacer spring at a distance fromtheend so as to secure the connector to the spacer spring and;maihta n theend'coils at a tension which-was exerted 1 flagainst the coil of the main spring; 011 account ofthenecessity ofhaving somewhat long outturned ends to afford adependable hook connection of the connecto r loo'p with y bling'"Samegoiwhich the renewingis a specification: 1 j l i to f'upholstering' Yspring structures such hedYa-nd? cushion springs, asyfor'example; in structures wherei vertically disposed uphlosteringsprings or main cushioning springs; are? connected In thespring structures of the type to which my improvement more particularly &jnelates, ;it is customary to; hold the main the spacer spring the} connector could not be inserted directly 1 into; the: mid of the spacerspring and-it was necessary toscrew the end of the spacer springover' the inner end of the connector loop 1 after the latter was placed upon -theeml ofithe main spring; This in' ,v olyed nncli loss of time and also necessitat j ed the-spacer springbeingyscrewedonto-the connector at one end much farther than re quired inthe normal position i so. that the Opposite end couldf he thereafterscrewed in the reverse direction new a connector ofanrjotheif springydurmg whichoperationthe first mentioned' end ofthe spacer spring was unscrewed a correspondingniamount from the first connector. Obviously such a method.

oi lassemblilig the partswas expensive; and i' e the primary ob ect of my present nvention is -to' effect amaterial Isaving of labor and redii'cethe cost of the assenilolingopenation 75 and atthe same time atiord a seoure conw 1 Referring mum clrawin gs the reference numeral 1= indicates "uphojlstering 'l spnings which may beof any usual constructiom;

suclr asthehourglassor similar type'and 2",

hectorwhich will not' readil ygbeco ne loose] i i the spacingsprings which extend between and connect withthe uppennost coils 3 oi '1 t-hespringsv1=.= the drawing, I haveshown only four of: the upliolst'ening springs- 1, but

it willflbeunderstood; of course; that these springs Will be employed in suitable nuin'her' for a bed onothen cushionin which: the

I spring stnucture ispto he used'. Ordinarily the spacing springs-2? will he arranged so as to intensect each -other as indioatedin Fig.

1: oil the drawingphut this is awellknownj ent invention;

annange nentfand forms n'o part ofthe pres-- f Fbr connecting the-ends oftlie springs 21 springs '1, I form each spring2 at each end with a downwardly extending diametrica'lly arranged portionor arm i, preferably although not necessarily, of slightly greater length than the diameter of the coils of the spring 2. A loop 5 having eyes 6 horizontally disposed as shown and spaced apart a somewhat less distance than the din witliiiitlie u'ppe n-coils: of the upliolstering y a inc ameter of the coils of thespring 2 has an :seat touengage around the coil 3 oftheupholster-mgflspring, pWllZll an indentat on 8 which'holdsthe coil 3'w1th1n such seat at offset portion 7 atthe upper end affording a. V

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the upper end of the connector loop. After the connector 5 has been placed in proper position on the coil 3, the end t of the spring 2 is inserted down through both of the eyes 6 as shown in Fig. 2, the end I when so engaged serving to lock the coil 3 in the seat portion 7 of the connector and the lower extremity of the arm t, which is indi cated by dotted lines at 9 on Fig. 2 is then bent laterally under the lower eye 6 as shown at 10 in Fig. 2 or in any other suit-- able manner so as to lock the connector 5 on the arm l of the spring 2.

Obviously the arm 4 and connector 5 may be shorter than the size I have shown herein without materially affecting the practicability of the device and in fact the connector may if desired consist of a short loop with the eyes 6 spaced apart a distance substantially equal to the diameter of the coil 3 and the arm 4 may be correspondingly shortened to provide merely suflicient length thereof so as to extend through the eyes 6 of the projecting connector and afford a portion which may be bent under the lower eye so as to lock the connector in place thereon.

With the construction hereinbefore described, it is unnecessary to rotate the springs 2 in order to connect same with the spring 1 as with connectors heretofore employed but the springs 2 are connected together in pairs as shown in Fig. 2 with the end arms a thereof extended downwardly and then loops or connectors 5 are placed on the coils 3 of the springs 1 and the end arms 4 of the springs 2 inserted through the eyes 6 of the connectors after which the ends 9 thereof are bent as hereinbefore indicated so as to lock the connector on the end of spring 2 and thus effect a secure connection of the springs 2 with the springs 1.

It will be observed that with this connector a high degree of flexibility is afforded so that no undue strain is imposed upon the connection, inasmuch as the seat portion 7 pivots horizontally on the coil 3 and the arm a pivots vertically in the eyes 6 of the connector. The object of forming the connectors 5 with the ofiset seats 7 at their upper ends is to insure holding the upper portions of the spacing springs more nearly in line with the upper coils of the upholstering springs, thus giving a flatter and more uniform surface to the structure.

IVhile I have described what I regard as the preferred embodiment of the invention, it is obvious that details may be varied without departing from the scope thereof which is to be determined by the appended claims.

I claim as my invention 1. In a spring structure, the combination of an upholstering spring, a spacing spring extending laterally from the upholstering spring, and a connector which holds a coil of the upholstering spring against the end of the spacing spring, said connector being formed with vertically spaced arms having apertures through which the end of the spacing spring is inserted.

2. In a spring structure, the combination of an upholstering spring, a spacing spring extending laterally from the upholstering spring, and a connector whereby a coil of the upholstering spring is secured to the end of the spacing spring, said connector comprising a vertically elongated member having apertured ends through which the end portion of the spacing spring is in serted, and a seat spaced from the lower arm adjacent the upper arm and engaging the coil of the upholstering spring for maintaining same eccentrically above the axis of the spacing spring.

3. In a spring structure, the combination of an upholstering spring, a spacing spring having an upright portion at the end extending substantially at right angles to the axis of the spacing spring, and a connector comprising a seat portion engaging a coil of the upholstering spring and interposed between vertically spaced arms, said arms being provided with apertures engaged by the aforesaid upright portion of the spacing spring so as to be held against swinging movement in a vertical plane relatively to the end of the spacing spring, and means for locking the connector on the end of the spacing spring.

Chicago. Ill, April 5, 1920.

WILLIAM H. KIN NEY. 

